Please help me to focus input field in the instagram web

I want to achieve following algorithm:

Preconditions:

1. You are logged in instagram web version
2. You see the default home page
3. You are using chrome
4. It should be done via console tab in chrome

Task:

1. Do in vanilla JS the focus of the input field with a recommendation window i.e
2. Focus the field, input cats, submit it and see the recommendation window

let search = document.querySelectorAll('[placeholder="Поиск"]')[0];
search.focus();
search.click();

Expected behaviour:

1. Search input found
2. Search input focused
3. Recommendation popup appeared

Actual behaviour:

1. Search input found
2. Search input not focused

Thank you for any assistance!